Multi-layer low-spin golf ball
US5947842A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Mar 13, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/3644
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention is directed towards a low-spin multi-layer golf ball which comprises a soft core, a cover layer and a mantle layer disposed between the core and cover layer, wherein the mantle layer has a shore D hardness of greater than 60 and a specific gravity of greater than about 1.2. The invention is also directed towards a golf ball comprising a core, cover layer, and a mantle layer, in which the core has a sufficient amount of calcium oxide to reduce core compression by at least about 2 compression points compared to a core consisting of the same mixture wherein zinc oxide is substituted in place of the calcium oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.